I had this power adapter with my high end laptop now scrapped.
The reason I need it is the fact it offers 19 Volt at 6.15 Amp ( very impressive)
What baffled me is the warning on the adapter "Connecting only to grounded output" And since I was using it with HP laptop. I was OK
Now I want to use it as a bench power supply. And my problems escalated.
The adapter provide three wires: White , Blue and Black. ( When I opened the casing there is a wire from the Ground AC source to this wire )
In my case The AC source has no ground Only Live and Neutral. So this black wire is actually floating.
I measured the voltage across Black and White it was +20+ volt
I measured the voltage across Black and Blue it was +20+ volt.
If I connect any of the pairs (Blk/Wt or Blk /blue) to an electronic Load, it goes to zero !!!!!!!
My question to you: How I can use this wonderful Adapter as a NORMAL dc source.
The reason I need it is the fact it offers 19 Volt at 6.15 Amp ( very impressive)
What baffled me is the warning on the adapter "Connecting only to grounded output" And since I was using it with HP laptop. I was OK
Now I want to use it as a bench power supply. And my problems escalated.
The adapter provide three wires: White , Blue and Black. ( When I opened the casing there is a wire from the Ground AC source to this wire )
In my case The AC source has no ground Only Live and Neutral. So this black wire is actually floating.
I measured the voltage across Black and White it was +20+ volt
I measured the voltage across Black and Blue it was +20+ volt.
If I connect any of the pairs (Blk/Wt or Blk /blue) to an electronic Load, it goes to zero !!!!!!!
My question to you: How I can use this wonderful Adapter as a NORMAL dc source.